Solve the system by substitution. x + 7y = -402x + 7y = -38
A. {(-2, -7)}
B. {(2, -6)}
C. {(3, 2)}
D. ?
Answer: B
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Find the prime factorization of the number.360
A. 23 ? 3 ? 5 B. 22 ? 3 ? 5 C. 23 ? 32 ? 5 D. 22 ? 32 ? 5
Factor.15x2 + 32xy + 16y2
A. (3x - 4y)(5x - 4y) B. (15x + 4y)(x + 4y) C. (3x + 4y)(5x + 4y) D. (15x + y)(x + 16y)
Which polygons can be used to make a regular tessellation? Explain why.
What will be an ideal response?
Solve the problem.The following points form a quadratic relationship: (1, 5.0), (2, 4.4), (3, 4.3), (4, 4.2), (5, 4.6), (6, 4.8), (7, 5.4), (8, 6.2) . The x-coordinates are the years a particular company has been in operation and the y-coordinates are the profit, in millions, for that year. Find the quadratic function that models the profit in millions as a function of x, the number of years of operation. Round to three decimal places.
A. y = 0.203x2 - 0.945x + 7.098 B. y = - 0.003x2 + 0.145x - 0.892 C. y = 0.099x2 + 1.254x - 3.512 D. y = 0.101x2 - 0.723x + 5.552